With retailers pushing out their holiday marketing campaigns earlier and earlier each year, consumers have come to expect good deals. Retailers plan for greater demand by adding additional workers. Per Indeed.com, retail job postings have gone up 5% since September 2015.

Brands like JC Penney, Macy's and Target have adjusted their holiday plans. Shipping firms like UPS and FedEx have also had to respond to online shopping growth by boosting their worker numbers in recent years.